Opera Quotes - page 15
The source of totalitarianism is a dogmatic attachment to the official word: the lack of laughter, of ironic detachment. An excessive commitment to Good may in itself become the greatest Evil: real Evil is any kind of fanatical dogmatism, especially exerted in the name of supreme Good... Consider only Mozart's Don Giovanni at the end of the opera, when he is confronted with the following choice: if he confesses his sins, he can still achieve salvation; if he persists, he will be damned forever. From this viewpoint of the pleasure principle, the proper thing to do would be to renounce his past, but he does not, he persists in his Evil, although he knows that by persisting he will be damned forever. Paradoxically, with his final choice of Evil, he acquires the status of an ethical hero - that is, of someone who is guided by fundamental principles beyond the pleasure principle and not just by the search for pleasure or material gain.
Slavoj Žižek